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Question

What is the meaning of lanthanides?


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Solution

  1. Lanthanoids are the chemical elements present in the periodic table.
  2. These are rare earth elements because they are found in very minimal quantity on earth.
  3. They belong to the f-block of the periodic table ranging from 58 to 71.
  4. The general electronic configuration of f-block elements are Xe4f1-145d0-16s2
  5. There are a total of 14 elements of lanthanoids.
  6. The lanthanoids belong to 6th period and are placed at bottom of the periodic table.
  7. The stable oxidation state of lanthanoid elements is +3.

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